Comfortable, durable, and ready to tackle a wide variety of bottom bracket standards, the Unior Open Bottom Bracket Wrench can handle almost any Shimano Hollowtech II, Campagnolo Ultra-Torque and Power Torque, Race Face, FSA, SRAM, Truvativ, and even some Chris King bottom brackets. To double-check which BBs it can accommodate, give us a buzz and we'll help you out.